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When revalidate_rectypeid() acts to update a stale record type OID in plpgsql's data structures, it fixes the active PLpgSQL_rec struct as well as the PLpgSQL_type struct it references. However, the latter is shared across function executions while the former is not. In a later function execution, the PLpgSQL_rec struct would be reinitialized by copy_plpgsql_datums and would then contain a stale type OID, typically leading to "could not open relation with OID NNNN" errors. revalidate_rectypeid() can easily fix this, fortunately, just by treating typ->typoid as authoritative. Per report and diagnosis from Ashutosh Sharma, though this is not his suggested fix. Back-patch to v11 where this code came in. Discussion: https://postgr.es/m/CAE9k0Pkd4dZwt9J5pS9xhJFWpUtqs05C9xk_GEwPzYdV=GxwWg@mail.gmail.com |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.